for i in range(1, 40, 1)
	.bd{i}
		border: 1px solid color + i

for i in range(1, 40, 1)
	.bdt{i}
		border-top: 1px solid color + i

for i in range(1, 40, 1)
	.bdb{i}
		border-bottom: 1px solid color + i
	
for i in range(1, 40, 1)
	.bdl{i}
		border-left: 1px solid color + i

for i in range(1, 40, 1)
	.bdr{i}
		border-right: 1px solid color + i

	
for i in range(1px, 10px, 1)
	.bdw{i} { border-width: i; }	
	
for i in range(1px, 10px, 1)
	.bdtw{i} { border-top-width: i; }	

for i in range(1px, 10px, 1)
	.bdbw{i} { border-bottom-width: i; }	

for i in range(1px, 10px, 1)
	.bdlw{i} { border-left-width: i; }		
	
for i in range(1px, 10px, 1)
	.bdrw{i} { border-right-width: i; }		
	